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Table 2 List of potential and actual complications during the observation period

From: Clinical complications during treatment with a modified Herbst appliance in combination with a lingual appliance

Type of complication Number of actual complications x Frequencies of x complications, n (%)
Complications associated with mandibular canine/premolar attachments
 TOTAL loose attachment 1 2 (5.71 %)
  0 33 (94.29 %)
 LEFT TOTAL loose attachment 1 1 (2.86 %)
  0 34 (97.14 %)
 RIGHT TOTAL loose attachment 1 1 (2.86 %)
  0 34 (97.14 %)
 TOTAL other complications 0 35 (100 %)
Complications associated with maxillary first molar (second premolar) attachments
 TOTAL loose attachment 2 1 (2.86 %)
  1 4 (11.43 %)
  0 30 (85.71 %)
 LEFT TOTAL loose attachment 1 2 (5.71 %)
  0 33 (94.29 %)
 RIGHT TOTAL loose attachment 1 4 (11.43 %)
  0 31 (88.57 %)
 TOTAL other complications 0 35 (100 %)
Complications associated with telescopes
 TOTAL disconnected 0 35 (100 %)
 LEFT TOTAL disconnected 0 35 (100 %)
 RIGHT TOTAL disconnected 0 35 (100 %)
 OTHERS: TOTAL others 0 35 (100 %)
L-Pin fractures
 TOTAL 1 5 (14.28 %)
  0 30 (85.72 %)
 LEFT 1 3 (8.57 %)
  0 32 (91.43 %)
 RIGHT 1 2 (5.71 %)
  0 33 (94.29 %)
Archwire fractures during Herbst treatment
 TOTAL 0 35 (100 %)
 LEFT TOTAL 0 35 (100 %)
 RIGHT TOTAL 0 35 (100 %)
Total Complications
 TOTAL Complications 2 3 (8.57 %)
  1 7 (20 %)
  0 25 (71.43 %)
 LEFT TOTAL Complications 1 6 (17.14 %)
  0 29 (82.86 %)
 RIGHT TOTAL Complications 2 1 (2.86 %)
  1 5 (14.29 %)
  0 29 (82.86 %)
 Patients with complication ≥1 complication 10 (28.57 %)
  no complication/censored 25 (71.43 %)